Company Filing History:

10 out of 42,485

Hitachi, Ltd.

patents

2 out of 149

Hitachi Powdered Metals Co., Ltd.

where one patent can have more than one assignee

Years Active: 1978-1991

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5035677 - A universal power transmission joint having a pair of drive pins fixed (1991-07-30),

2. 5009070 - Combustion apparatus for gas turbine (1991-04-23),

3. 4924690 - Method and apparatus for plastically forming helical internal gears and (1990-05-15),

4. 4873150 - High water-resistant member, and valve gear using the same for use in (1989-10-10),

5. 4713646 - Gas sensor and method of producing the same (1987-12-15),

6. 4608232 - Gas sensor (1986-08-26),

7. 4486462 - Method for coating by glow discharge (1984-12-04),

8. 4394234 - Method of processing electrically conductive material by glow discharge (1983-07-19),

9. 4392296 - Method of joining two metal members (1983-07-12),

10. 4163266 - Magnetic tape scanning assembly for use in video tape recorder and (1979-07-31),

11. 4077810 - Aluminum alloys having improved mechanical properties and workability (1978-03-07),

Title: Naotatsu Asahi: Innovator in Power Transmission and Gas Turbine Technology

Introduction

Naotatsu Asahi is a prominent inventor based in Katsuta, Japan, known for his significant contributions to the fields of power transmission and gas turbine technology. With a total of 11 patents to his name, Asahi has demonstrated a remarkable ability to innovate and improve existing technologies.

Latest Patents

Among his latest patents is a universal power transmission joint that features a pair of drive pins fixed in a unique configuration. This power transmission joint consists of two rotational members that are axially spaced apart, with a guide pin positioned between them. The design allows for torque transmission while enabling the drive pins to slide radially, swing, and axially slide. Another notable patent is for a combustion apparatus for gas turbines, which incorporates a ceramic coating on the inner sleeve to enhance high-temperature corrosion resistance. This innovative design effectively shields the sleeve from flame radiation heat and prevents the formation of oxides, thereby reducing thermal stress and the risk of cracks.

Career Highlights

Asahi has had a distinguished career, working with reputable companies such as Hitachi, Ltd. and Hitachi Powdered Metals Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in technology.

Collaborations

Throughout his career, Asahi has collaborated with notable colleagues, including Hisanobu Kanamaru and Yoshitaka Kojima. These partnerships have fostered a creative environment that has led to innovative solutions in their respective fields.

Conclusion

Naotatsu Asahi's work exemplifies the spirit of innovation in engineering and technology. His patents reflect a deep understanding of complex systems and a commitment to enhancing performance and reliability. Asahi's contributions continue to influence the industry and inspire future inventors.

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